<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8">
    <title>注册表单</title>
    <style>
        form {
            background-color: #f9f9f9;
            padding: 20px;
            border: 1px solid #ddd;
            border-radius: 5px;
            width: 300px;
        }
        input[type="text"], input[type="password"] {
            width: 100%;
            padding: 8px;
            margin: 5px 0;
            box-sizing: border-box;
        }
        input[type="submit"] {
            background-color: #4CAF50;
            color: white;
            padding: 10px 15px;
            border: none;
            border-radius: 4px;
            cursor: pointer;
        }
        input[type="submit"]:hover {
            background-color: #45a049;
        }
    </style>
</head>
<body>
    <form action="/mysql_cgi" method="POST">
        <label for="username">账号:</label>
        <input type="text" id="username" name="username" required><br><br>
        <label for="password">密码:</label>
        <input type="password" id="password" name="password" required><br><br>
        <input type="submit" value="注册">
    </form>
</body>
</html>